CN105756195B - A kind of hybrid grid cylinder that can improve bundle pillar unstability load - Google Patents

A kind of hybrid grid cylinder that can improve bundle pillar unstability load Download PDF

Info

Publication number
CN105756195B
CN105756195B CN201610257786.4A CN201610257786A CN105756195B CN 105756195 B CN105756195 B CN 105756195B CN 201610257786 A CN201610257786 A CN 201610257786A CN 105756195 B CN105756195 B CN 105756195B
Authority
CN
China
Prior art keywords
cylinder
prestressed cable
steel lattice
outer press
space
Prior art date
Application number
CN201610257786.4A
Other languages
Chinese (zh)
Other versions
CN105756195A (en
Inventor
郭彦林
章友浩
童精中
朱博莉
周鹏
王宇伟
王海山
张可
於国飞
余家明
Original Assignee
清华大学
浙江中南建设集团钢结构有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 清华大学, 浙江中南建设集团钢结构有限公司 filed Critical 清华大学
Priority to CN201610257786.4A priority Critical patent/CN105756195B/en
Publication of CN105756195A publication Critical patent/CN105756195A/en
Application granted granted Critical
Publication of CN105756195B publication Critical patent/CN105756195B/en

Links

Abstract

The invention discloses a kind of hybrid grid cylinder that can improve bundle pillar unstability load, it is related to technical field of structural engineering.Hybrid grid cylinder includes steel lattice cylinder, outer press ring, the oblique radiation prestressed cable of prestressed cable disk and space.Multiple tracks outer press ring is embedded in steel lattice cylinder along short transverse, prestressed cable disk is located at steel lattice cylinder axle center, and shifted to install along short transverse and outer press ring, prestressed cable is oblique is connected between outer press ring and prestressed cable disk for the oblique radiation in space, and three collectively constitutes the inner space rope support system of hybrid grid cylinder.The rope support body system is embedded in some rung formula rigid disks equivalent in mesh cylinder interior edge short transverse in the horizontal plane, the out-of-plane deformation of energy operative constraint mesh cylinder, reduces sensitiveness of the mesh cylinder to initial geometrical defect, and then improve the bundle pillar unstability load of mesh cylinder;Girder system then is collectively constituted with mesh cylinder in vertical plane, lifts the anti-side rigidity and bearing capacity of mesh cylinder, thus is a kind of new structural systen of high-efficiency and economic.

Description

A kind of hybrid grid cylinder that can improve bundle pillar unstability load

Technical field

The present invention relates to technical field of structural engineering, more particularly to a kind of new hybrid grid cylinder, more particularly to one kind The hybrid grid cylinder of bundle pillar unstability load can be improved.

Background technology

As the load-carrying construction of vertical load, hyperboloid or cylinder mesh cylinder are due to its profile attractive in appearance and well penetrating Effect, engineer applied is more and more more in recent years.Most typical not belong to Chinese animation museum and Guangzhou New TV Tower, the former uses Hyperboloid network cylinder, the latter employs rigidity direction the three-way grid cylinder of notable difference.

Either hyperboloid mesh cylinder or cylinder mesh cylinder, in vertical load (gravity laod) and moment of flexure (wind or earthquake) Under effect, cylinder overall collapse will not occur because its planar dimension is larger, but easily occur outside the local large area face of cylinder Unstable failure, referred to as bundle pillar unstability.Because cylinder peripheral member (grid posts) is radially without any horizontal support, during bundle pillar unstability Unstability load is relatively low, is the main reason for restricting mesh cylinder structure design economy.

The bundle pillar unstability load of mesh cylinder has substantial connection with its height and diameter, with the increase of mesh cylinder block dimension, Particularly planar dimension increases its bundle pillar unstability load and will drastically declined, thus to meet that requirement for bearing capacity need to increase outside mesh cylinder The size of component (grid posts) is enclosed, but this will reduce the permeability of grid barrel structure, and it is poor to design economy.

In view of the situation, it is structure to seek vertically to carry more efficient, the more economical mesh cylinder pattern of structure design The task of top priority of engineering circles.It is a kind of waste material it will be apparent that only from the grid pattern or increase web thickness for changing cylinder Material and the method little to vertical bearing capacity raising, thus to seek solution in terms of structural style and structural system.

The content of the invention

To improve the load-carrying efficiency of grid barrel structure and design economy, the present invention, which proposes one kind, can improve bundle pillar mistake The hybrid grid cylinder of steady load.The hybrid grid cylinder includes:Steel lattice cylinder, outer press ring, the oblique spoke of prestressed cable disk and space Penetrate prestressed cable;The outer press ring is set along short transverse multiple tracks according to the actual requirements, is embedded in the steel lattice cylinder;Institute State prestressed cable disk and be placed on the steel lattice cylinder shaft core position, and shifted to install along short transverse and the outer press ring;It is described Prestressed cable is oblique is connected between the outer press ring and the prestressed cable disk for the oblique radiation in space.

In above-mentioned hybrid grid cylinder, the steel lattice cylinder includes:Grid posts and ring beam;The grid posts are along two to intersection Arrangement, form cylinder or hyperboloid grid barrel shell;The ring beam is arranged on the top and bottom of the steel lattice cylinder, respectively with institute State the top and bottom connection of grid posts.The steel lattice cylinder is also on the downside of top ring beam and the upside of bottom ring beam edge respectively Ring is uniformly arranged 8 otic placodes to be articulated and connected with the corresponding oblique radiation prestressed cable in the space.

In above-mentioned hybrid grid cylinder, the outer press ring includes:Annular girder, connection short column and otic placode;Multiple connections Short column is arranged on the periphery wall of the annular girder to be welded to connect with corresponding grid posts;The otic placode is on the inside of the annular girder 8 are circumferentially symmetrically set respectively up and down to be articulated and connected with the corresponding oblique radiation prestressed cable in the space.

In above-mentioned hybrid grid cylinder, the prestressed cable disk includes:Stem, ring flat-plate and otic placode;The stem is arranged on The center of the prestressed cable disk;The middle part of the stem is enclosed on outside the ring flat-plate;Periphery wall of the otic placode in the stem Upper and lower sides circumferentially symmetrically set respectively 8 with the oblique radiation prestressed cable in the corresponding space is be hinged connects Connect.

In above-mentioned hybrid grid cylinder, the both ends of the oblique radiation prestressed cable in the space set respectively fork ear with phase The corresponding otic placode being arranged on the ring beam, outer press ring and prestressed cable disk is articulated and connected.

The new hybrid grid cylinder proposed by the present invention that bundle pillar unstability load can be significantly improved, is internally additionally arranged by outer The rope support system of pressure ring, the oblique radiation prestressed cable composition of prestressed cable disk and space, the hybrid grid cylinder tool so formed Standby following advantage:

(1) it can effectively prevent mesh cylinder from bundle pillar unstability occurs, improve bundle pillar unstability of the mesh cylinder under vertical uniform load q Load.The rope being made up of outer press ring, the oblique radiation prestressed cable of prestressed cable disk and space supports system, in the horizontal direction phase When in embedded in several rung formula rigid disks along short transverse inside mesh cylinder, being applied with prestressed drag-line can be effective Constraint with coordinate grid posts out-of-plane deformation, and then prevent bundle pillar Failure Model appearance.

(2) anti-side rigidity and bearing capacity of mesh cylinder can be effectively improved.Traditional hyperboloid steel lattice cylinder or cylinder Bearing mechanism of the steel lattice cylinder under the horizontal loads such as wind, earthquake is similar to cantilever mast, its anti-side rigidity and bearing capacity compared with It is weak.And described hybrid grid cylinder, set up inside it by outer press ring, the oblique radiation prestressed cable of prestressed cable disk and space The rope support system of composition, collectively constitutes firm girder system with peripheral meshes cylinder in vertical plane, can significantly improve The anti-side rigidity and bearing capacity of mesh cylinder.Because drag-line is applied with the prestressing force of certain level, this girder system can guarantee that All the time normal operating conditions is in, will not be deformed due to steel lattice cylinder is made rope relaxation and exit work.

(3) sensitiveness of the mesh cylinder to geometry initial imperfection can be effectively reduced.Traditional hyperboloid steel lattice cylinder or post Face steel lattice cylinder is under vertical load or horizontal loads, and grid posts are in vertical pressured state, and bundle pillar unstability is to cylinder Initial geometrical defect has larger sensitiveness;That is set up inside mesh cylinder is oblique by outer press ring, prestressed cable disk and space The rope support system of prestressed cable composition is radiated, can effectively constrain and coordinate the local deformation of grid posts, thus greatly Sensitiveness of the mesh cylinder to geometry initial imperfection is reduced, and then prevents occurring to early for mesh cylinder bundle pillar Failure Model.

(4) economy and reasonability of structural system are improved.Traditional hyperboloid steel lattice cylinder or cylinder steel lattice cylinder passes through Increase the sectional dimension of grid posts, improve the bending rigidity and anti-bending bearing capacity of grid posts, and then reduce outside mesh cylinder face Deformation, the purpose for improving bundle pillar unstability load.And hybrid grid cylinder proposed by the present invention constrains mesh cylinder by prestressed cable Out-of-plane deformation, what is utilized is the axial rigidity and axial bearing capacity of prestressed cable, is had compared to component bending resistance more direct Binding effect and Geng Gao stock utilization, thus be more reasonable more economical structural system.

Brief description of the drawings

Fig. 1 is the graphics of the hybrid grid cylinder, when steel lattice cylinder uses hyperboloid mesh cylinder;

Fig. 2 is the exploded view of the hyperboloid mesh cylinder;

Fig. 3 is the graphics of the rope support system, when steel lattice cylinder uses hyperboloid mesh cylinder;

Fig. 4 is the graphics of the hybrid grid cylinder, when steel lattice cylinder uses cylinder mesh cylinder;

Fig. 5 is the exploded view of the cylinder mesh cylinder;

Fig. 6 is the graphics of the rope support system, when steel lattice cylinder uses cylinder mesh cylinder;

Fig. 7 is the exploded view of the rope support system elementary cell;

Fig. 8 is the ring beam graphics;

Fig. 9 is the graphics of the outer press ring;

Figure 10 is the graphics of the prestressed cable disk;

Figure 11 is the graphics of the oblique radiation prestressed cable in the space;

Figure 12 is the exploded view that the oblique radiation prestressed cable in the space is articulated and connected.

Embodiment

1~Figure 12 below in conjunction with the accompanying drawings, describe embodiments of the present invention in detail.

As Figure 1 and Figure 4, a kind of new hybrid grid cylinder that can improve bundle pillar unstability load is included with lower component:

1 --- steel lattice cylinder, including two kinds of forms:1-1 --- hyperboloid mesh cylinder, 1-2 --- cylinder mesh cylinder;

2 --- outer press ring;

3 --- prestressed cable disk;

4 --- the oblique radiation prestressed cable in space.

As shown in Fig. 1~Fig. 7, a kind of hybrid grid cylinder that can improve bundle pillar unstability load is by steel lattice cylinder 1, outer press ring 2nd, the oblique radiation prestressed cable 4 of prestressed cable disk 3 and space forms.Steel lattice cylinder 1 can use hyperboloid mesh cylinder 1-1 or post Surface grids cylinder 1-2;Outer press ring 2 can be set along short transverse multiple tracks according to the actual requirements, be embedded in steel lattice cylinder 1;Prestressing force Rope disk 3 is placed on the shaft core position of steel lattice cylinder 1, and is shifted to install along short transverse and outer press ring 2;The oblique radiation prestressing force in space Drag-line 4 is oblique to be connected between outer press ring 2 and prestressed cable disk 3.

As shown in Fig. 2, Fig. 5, steel lattice cylinder 1 is made up of grid posts 5 and ring beam 6.5 liang of grid posts form post to arranged crosswise Face or hyperboloid grid barrel shell;Ring beam 6 has twice, top ring beam 6-1 and bottom ring beam 6-2, is separately positioned on steel lattice cylinder 1 Top and bottom, and the top and bottom with the grid posts 5 are connected respectively.

As shown in Fig. 2,5,8, at top, ring beam 6-1 downside and bottom ring beam 6-2 upside are circumferentially uniformly set respectively 8 otic placodes 7 are put to be articulated and connected with the corresponding oblique radiation prestressed cable 4 in space.

As shown in Fig. 3,6,7,9, outer press ring 2 is made up of annular girder 8, connection short column 9 and otic placode 10.Multiple connection short columns 9 It is arranged on the periphery wall of annular girder 8 to be welded to connect with corresponding grid posts 5;Otic placode 10 is on the inner side of annular girder 8 edge respectively up and down Ring symmetrically sets 8 to be articulated and connected with the corresponding oblique radiation prestressed cable 4 in space.

As shown in Fig. 3,6,7,10, prestressed cable disk 3 is made up of stem 11, ring flat-plate 12 and otic placode 13.Stem 11 is arranged on The center of prestressed cable disk 3, ring flat-plate 12 are enclosed on the middle part of stem 11 outside, and otic placode 13 is distinguished in the upper and lower sides of the periphery wall of stem 11 8 are circumferentially symmetrically set to be articulated and connected with the corresponding oblique radiation prestressed cable 4 in space.

Such as Fig. 3, shown in 6,7,11, the both ends of the oblique radiation prestressed cable 4 in space set respectively fork ear 14 with it is relative The otic placode 7,10,13 being arranged on ring beam 6, outer press ring 2 and prestressed cable disk 3 answered is articulated and connected.

As shown in Fig. 3,6,7,12, the oblique radiation prestressed cable 4 in space is with being arranged on ring beam 6, outer press ring 2 or prestressing force The connected mode of otic placode 7,10,13 on rope disk 3 is be hinged.Pin on fork ear 14 and otic placode 7,10,13 is passed through using bearing pin 15 Axis hole 16 links together both.

Claims (2)

  1. A kind of 1. hybrid grid cylinder that can improve bundle pillar unstability load, containing steel lattice cylinder, outer press ring, characterized in that, institute Hybrid grid cylinder is stated also to contain:The oblique radiation prestressed cable of prestressed cable disk and space;The outer press ring is according to the actual requirements Set, be embedded in the steel lattice cylinder along short transverse multiple tracks;The prestressed cable disk is placed on the steel lattice cylinder axle center Position, and shifted to install along short transverse and the outer press ring;Prestressed cable is oblique is connected to institute for the oblique radiation in the space State between outer press ring and the prestressed cable disk;The steel lattice cylinder includes:Grid posts and ring beam;The grid posts are along two to friendship Fork arrangement, forms cylinder or hyperboloid grid barrel shell;The ring beam is arranged on the top and bottom of the steel lattice cylinder, respectively with The top and bottom connection of the grid posts;The steel lattice cylinder is also distinguished in the downside of top ring beam and the upside of bottom ring beam 8 otic placodes are circumferentially uniformly arranged, to be articulated and connected with the corresponding oblique radiation prestressed cable in the space;The external pressure Ring includes:Annular girder, connection short column and otic placode;It is multiple it is described connection short columns be arranged on the periphery wall of the annular girder, with Corresponding grid posts are welded to connect;The otic placode on the inside of the annular girder up and down respectively circumferentially symmetrically set 8, with The oblique radiation prestressed cable in the corresponding space is articulated and connected.
  2. 2. hybrid grid cylinder according to claim 1, it is characterised in that the prestressed cable disk includes:Stem, ring flat-plate and Otic placode;The stem is arranged on the center of the prestressed cable disk;The middle part of the stem is enclosed on outside the ring flat-plate;The otic placode 8 are circumferentially symmetrically set respectively in the upper and lower sides of the periphery wall of the stem, with oblique with the corresponding space Radiation prestressed cable is articulated and connected;The both ends of the oblique radiation prestressed cable in the space set respectively fork ear with it is corresponding The otic placode being arranged on the ring beam, outer press ring and prestressed cable disk be articulated and connected.
CN201610257786.4A 2016-04-22 2016-04-22 A kind of hybrid grid cylinder that can improve bundle pillar unstability load CN105756195B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610257786.4A CN105756195B (en) 2016-04-22 2016-04-22 A kind of hybrid grid cylinder that can improve bundle pillar unstability load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610257786.4A CN105756195B (en) 2016-04-22 2016-04-22 A kind of hybrid grid cylinder that can improve bundle pillar unstability load

Publications (2)

Publication Number Publication Date
CN105756195A CN105756195A (en) 2016-07-13
CN105756195B true CN105756195B (en) 2018-02-09

Family

ID=56325701

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610257786.4A CN105756195B (en) 2016-04-22 2016-04-22 A kind of hybrid grid cylinder that can improve bundle pillar unstability load

Country Status (1)

Country Link
CN (1) CN105756195B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100705A (en) * 1977-02-10 1978-07-18 Silvio Diana Precast building structure
AU2522595A (en) * 1994-05-05 1995-11-29 Eic Management Gmbh Global vibro-compensating structural system (gvcs) for industrialized construction of vibro-isolated and seismo-resistant buildings
CN101709593B (en) * 2009-10-26 2011-09-14 天津大学 Prestressed hyperbolic paraboloid buckling-resistant support structure and manufacturing method thereof
CN102392488A (en) * 2011-10-19 2012-03-28 东北石油大学 Vertical reticulated shell steel-concrete combined structure
CN103074938B (en) * 2013-01-23 2015-06-10 北京工业大学 Annular cross cable truss structure
CN105064739B (en) * 2015-08-11 2018-01-05 中国五洲工程设计集团有限公司 A kind of hyperbola Double-level Reticulated Shell steel structure cooling tower
CN205776752U (en) * 2016-04-22 2016-12-07 清华大学 A kind of hybrid grid cylinder that can improve bundle pillar unstability load

Also Published As

Publication number Publication date
CN105756195A (en) 2016-07-13

Similar Documents

Publication Publication Date Title
JP2007520653A (en) Wind turbine tower, prefabricated metal wall parts for use in wind turbine tower, and method for constructing wind turbine tower
CN103243819B (en) Assembly concrete post-girder steel energy-dissipating type nodal connection device
CN103161168B (en) Detachable prestress supporting frame system
CN1057973C (en) Four-bar frame self-lifting type gantry crane
CN201785758U (en) Foundation pit supporting system
CN2753823Y (en) Angle steel buckling-free energy-dissipating support
CN101638916B (en) Connecting joint of coating composite steel concrete transformation column with composite steel concrete transformation box beam
CN203462764U (en) Large cantilever promotion counter-force frame
CN102839678B (en) Structure for improving rigidity and stability of foundation pit steel support
CN102635186B (en) Double-layer spoke type space string-structure steel roof truss and pre-stressed tension method thereof
CN201891126U (en) Independent pile foundation structure formed by non-uniform piles and bearing platform
CN103541430A (en) Support connection structure for steel structure corridor
CN203654299U (en) Steel support loose end
CN102235327B (en) Head tower for wind turbine
CN103556836B (en) Spherical reticulated shells assembling and construction method under restricted clearance condition
CN201933619U (en) Reinforced layer structure applied to high-rise building
JP3990975B2 (en) Composite structure transmission tower and assembly method by raising method
CN103255841A (en) Assembly-type concrete column-steel beam overhanging end plate type node connecting device
CN102535672A (en) Novel hybrid huge anti-seismic structure and construction method thereof
CN203066090U (en) Assembled bracing structure for steel sheet piling cofferdam construction
CN203700977U (en) Spring supporting-jacking reinforcing structure used for improving shear resistance capacity of bridge
CN101550703B (en) Method for designing reinforced concrete foundation or pile cap
WO2018072366A1 (en) Self-resetting and assembly-type flexible anti-seismic structure for subway station
CN203808094U (en) Adjustable tower crane steel platform foundation
CN201896318U (en) Tower crane foundation section and steel latticed column connecting structure

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant